The utility model belongs to the technical field of the mobile device technique and specifically relates to a tyre. This tyre's tread includes tread surface and inclined plane, the both sides of tread surface are equipped with the inclined plane to the slope of tyre axis respectively, all be equipped with on tread surface and the inclined plane along the twill of same direction slope. The twill comprises a plurality of chutes and a plurality of sloping block, chute and sloping block interval set up in turn, and are parallel to each other. Axial end to end is in proper order followed to a plurality of chutes, said a plurality of sloping blocks are connected along axial head and the tail in proper order mutually, formation along axially extended screw line the utility model discloses the cost has all obtained reducing with the minimum dimension by a wide margin, not only can realize moving platform's all-round removal, still has certain obstacle climbing ability through the ellipsoid body structure in addition, can adapt to rugged mountain region environment